Pressure Test
Application of pressure test using coloured fluorescent indicator liquid |
For pressure test oil or water-based fluorescent concentrates are added to the test liquid. The concentrates consist of luminophores, wetting and rust protection agents. For leak testing using coloured indicator liquids the indicator is applied onto the surface of the component (e.g. a weld) or the test specimen is filled with indicator liquid. After a certain exposure time visual testing is performed at the opposite side.
The test sensitivity is about 105 m3 Pa/s |
Scope of applications
Leak testing of hydraulic systems, motors, vessels and boilers

- Oil suspendable
- Fluorescent
Technical Data | |
Consumption Optimal wave length for excitation Colour under UV radiation |
0.5 - 2 ml/l 365 nm yellow fluorescent |




- Water suspendable
- Fluorescent
- Charged with emulsifier additive and corrosion protection
Technical Data | |
Consumption Optimal wave length for excitation Colour under UV radiation |
2 - 5 ml/l 365 nm green fluorescent |


Fluorescent penetrant
Under UV irradiation yellow-green fluorescent penetrant for leak testing
Technical Data | |
Optimal wave length for excitation Colour under UV Radiation |
365 nm yellow-green fluorescent |
Do not remove with water!



Fluorescent penetrant
Under UV irradiation yellow-green fluorescent penetrant for leak testing
Technical Data | |
Optimal wave length for excitation Colour under UV radiation |
365 nm yellow-green fluorescent |
Do not remove with water!


